Breaker Lockout Troubleshooting (Troubleshooting Guide)

On this page

Quick answer
Confirm the symptom
Tools and prep
Step-by-step troubleshooting
Common causes table
Parts matching
When to call a pro
FAQ
Related guides

Quick answer

If a breaker is locked out, first turn off all connected appliances and devices. Then, turn off the main power switch and reset the breaker. If it trips again, there may be a short circuit or overloaded circuit. Always prioritize safety by turning off the main power before working on electrical systems.

Confirm the symptom

A circuit breaker is in the 'off' position and won't reset.
Lights or outlets are not working in a specific area of your home.
Other circuit breakers are functioning normally.
There is no burning smell or visible damage.
The breaker handle is hard to move or feels stuck.

Tools and prep

Screwdrivers (flathead and Phillips)
Multimeter (optional, for advanced troubleshooting)
Flashlight
Turn off the main power switch at the electrical panel.
Ensure the area is dry and well-lit.
Wear insulated gloves for safety.

Step-by-step troubleshooting

Safety First
Do: Turn off the main power switch at the electrical panel.
Observe: Ensure all power is off in the affected area.
Means: Prevent electrical shock.
Next: Proceed to the next step.
Identify the Tripped Breaker
Do: Locate the breaker that is in the 'off' position.
Observe: Note the label or area of the house it controls.
Means: Confirm the correct breaker to reset.
Next: Turn off all devices and appliances on this circuit.
Reset the Breaker
Do: Firmly push the breaker to the 'off' position, then to the 'on' position.
Observe: Check if the breaker stays on.
Means: Reset the breaker to restore power.
Next: If it trips again, proceed to the next step.
Check for Overloaded Circuit
Do: Unplug devices and turn off lights on the affected circuit.
Observe: Try resetting the breaker again.
Means: Determine if the circuit is overloaded.
Next: If it stays on, plug devices back in one by one.
Inspect for Short Circuits
Do: Check for any visible signs of damage or burning smell.
Observe: Look for frayed wires or damaged outlets.
Means: Identify potential short circuits.
Next: If damage is found, call a professional.
Test the Circuit
Do: Use a multimeter to test the circuit for continuity.
Observe: Ensure there are no short circuits.
Means: Confirm the circuit is safe to use.
Next: If the circuit is safe, restore power.
Replace the Breaker
Do: If the breaker is faulty, replace it with a new one of the same amperage.
Observe: Ensure the new breaker is properly installed.
Means: Restore power to the circuit.
Next: Restore power to the main switch.

Common causes

Cause	Likelihood	Difficulty	Part often needed
Overloaded Circuit Too many devices drawing power simultaneously.	Common	Easy	None
Short Circuit Wiring issues or damaged outlets.	Sometimes	Medium	Wiring, outlets
Faulty Breaker Breaker has worn out or is defective.	Sometimes	Easy–Medium	New breaker
Ground Fault Water or moisture in electrical outlets.	Rare	Medium	GFCI outlet
Arc Fault Loose or damaged wiring causing sparks.	Rare	Hard	Wiring, outlets
Improper Breaker Size Breaker not rated for the circuit's load.	Rare	Medium	Correctly sized breaker

Parts matching

Ensure you have the right parts to fix the breaker lockout. Here are some common parts you might need.

New circuit breaker of the same amperage
GFCI outlet for ground fault protection
Electrical tape for securing wires
Wire connectors for repairing damaged wires
Outlet covers to replace damaged ones
Multimeter for testing circuits
Insulated gloves for safety

Always match the amperage of the new breaker to the old one to avoid further issues.

When to call a professional

If the breaker continues to trip after resetting.
If you find damaged wiring or outlets.
If there is a burning smell or visible damage.
If you are unsure about any step in the process.
If the breaker is hot to touch.
If you lack the necessary tools or knowledge.

FAQ

Why does my breaker keep tripping?

A breaker trips to prevent overheating or electrical fires. Common causes include overloaded circuits, short circuits, or faulty breakers.

Can I replace a breaker myself?

If you are comfortable with basic electrical work and have the right tools, you can replace a breaker. However, always prioritize safety and consider calling a professional if unsure.

What is the difference between a short circuit and an overloaded circuit?

An overloaded circuit occurs when too many devices draw power simultaneously, while a short circuit happens when a hot wire touches a neutral or ground wire, causing a spark.